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Across 4. A type of soil bacterium that grows in close contact with roots of plants 6. Which gammaproteobacteria is known to cause cholera? 7. Hyperthermophiles, methanogens, and extreme halophiles 9. Bacteria transmitted by ticks to humans that live in white blood cells and cause Ehrlichiosis, a fatal disease 11. Bacterium where a plamid is inserted into plant cell causing a tumor known as a crown gall 13. Largest subgroup of proteobacteria 15. Life cycle that takes forty eight hours to complete 16. Type of bacteria that is characterized as being facultative anaerobic, colonize in intestinal tract and produce bacteriocins 17. Eneterics that produces red pigment 20. Largest taxonomic group of bacteria 21. Gliding bacteria that form stalked fruiting body containing myxospores 22. Cause Legionellosis 23. Bacteria that are slender gram negative rods 24. Aerobic, gram negative cocci which inhabits mucous membranes of mammals and can cause gonorrhoea or meningococcal meningitis

Down 1. Causes diseases such as typhus and Rocky Mountain spotted fever via bites of insects or ticks 2. Betaproteobacteria that can be problematic in people diagnosed with genetic lung disease cystic fibrosis 3. Enterobacteriales responsible for shigellosis 5. Bacteria that is carried by urban rats and American Southwest ground squirrels 8. Use nutrient substances that distribute away from areas of anaerobic decomposition of organic matter 10. Oxygenic photosynthetic bacteria that has a blue green pigmentation and glide over solid surfaces 11. Agriculturally important bacteria with unusual morphology and can grow in very low levels of nutrients 12. Predators of other bacteria 14. Nitrogen-fixing bacteria that fix nitrogen in the roots of plants 18. Epsilonproteobacteria that contributes to the cause of peptic ulcers 19. Gammaproteobacteria that is a contributor to spoilage of food